“In the case of the seven epileptic patients two medical men did not smell the acid, but two chemists did some time afterwards. It requires an extensive experience readily to detect the smell. Some may perceive it, some not. Several persons should smell, some not being so susceptible of the odour as others. I agree with a French chemist that ‘under a considerable number of circumstances there must be great practical knowledge to detect smell.’ If a person once knows the smell, I think he will know it again.”[12] “I should think that before prussic acid could be obtained from horns, blood, and bones of animals, a heat of from 400 to 500 degrees would be necessary. All animals, whether human or not, die if they take prussic acid. There is no difference in its operation upon man and the inferior animals. There was no appearance of disease in the heart of the deceased. Had there been any rupture of the coronary arteries it would have been apparent. I never knew such a disease of the spinal marrow to cause sudden death. I know only of the two cases mentioned by Taylor of the gall bladder having a blue tint. The absence of it is no proof that the person did not die from prussic acid. The bottle into which I put the contents was perfectly clean and dry. The ends of the stomach were securely tied up with string when I moved the contents into the jug, which was also perfectly dry and clean. I have no doubt the deceased died from prussic acid.” After two constables (_Hill_ and _Larkin_) had proved the finding of a phial in a cupboard and two others in a jug, one of which contained hartshorn, the case was adjourned to the following morning. * * * * * _SECOND DAY. Thursday_, MARCH 13. * * * * * SUPPOSED PREVIOUS ATTEMPT TO POISON. _Charlotte Howard_, unmarried, a servant, said:—